This is true for other types of states(\( \sqrt{p}|01\rangle + \sqrt{1-p}|10\rangle \) ) as well. Thus, pairwise entanglemet given by concurrence is half to that of the coherence given by \(l_1\)  norm. Thus it is sufficient to analyze the concurrence \(C(t)\) . Furthermore, this provides an explicit example where entanglement can be measured by coherence[1]}, [2]}.
